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Finding the Fourth Proportional to 60,874.45, 91,263.89 and 38,683.69

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Solution

The fourth proportional to 60,874.45, 91,263.89 and 38,683.69 is: 57,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,874.45 : 91,263.89 = 38,683.69 : x
  2. Step 2: Convert to fraction form
    60,874.45/91,263.89 = 38,683.69/x
  3. Step 3: Cross multiply
    60,874.45x = 91,263.89 × 38,683.69
  4. Step 4: Simplify right side
    60,874.45x = 3,530,423,835.54
  5. Step 5: Solve for x
    x = 3,530,423,835.54/60,874.45
  6. Step 6: Final answer
    x = 57,995.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.